Expandable dental micromotor bur



FIG. 1 is a top, rear perspective view of the complete expandable dental micromotor bur.

FIG. 2 is a reduced side view of the complete expandable dental micromotor bur.

FIG. 3 is a reduced bottom view of the complete expandable dental micromotor bur.

FIG. 4 is a reduced top view of the complete expandable dental micromotor bur.

FIG. 5 is a reduced cross-section of the complete expandable dental micromotor bur along the plane of lines 5-5 of FIG. 2;

FIG. 6 is a reduced cross-section of the complete expandable dental micromotor bur along the plane of lines 6-6 of FIG. 2;

FIG. 7 is a top, front perspective view of the male member of the expandable dental micromotor bur.

FIG. 8 is a reduced side view of the male member of the expandable dental micromotor bur.

FIG. 9 is a reduced bottom view of the male member of the expandable dental micromotor bur.

FIG. 10 is a reduced top view of the male member of the expandable dental micromotor bur.

FIG. 11 is a reduced cross-section of the male member of the expandable dental micromotor bur along the plane of lines 11-11 of FIG. 8;

FIG. 12 is a reduced cross-section of the male member of the expandable dental micromotor bur along the plane of lines 12-12 of FIG. 8;

FIG. 13 is a top, rear perspective view of the female member of the expandable dental micromotor bur.

FIG. 14 is a reduced side view of the female member of the expandable dental micromotor bur.

FIG. 15 is a reduced bottom view of the female member of the expandable dental micromotor bur.

FIG. 16 is a reduced top view of the female member of the expandable dental micromotor bur.

FIG. 17 is a reduced cross-section of the female member of the expandable dental micromotor bur along the plane of lines 17-17 of FIG. 14; and,

FIG. 18 is a reduced cross-section of the male member of the expandable dental micromotor bur along the plane of lines 18-18 of FIG. 14. 

CLAIM The ornamental design for an expandable dental micromotor bur, substantially as shown and described. 